X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?a=blobdiff_plain;f=emcc.c;h=c1b1f7ac33bb28356022713893205b8d8a53e24e;hb=b95812963a8d187526145f5e1a9693f10eee2b65;hp=d85a0e85843372bbfbec7ca3d6a67d33a2e3e010;hpb=2360b77812e184902e44c7f4ea2f6fc79729e370;p=sgt-puzzles.git

diff --git a/emcc.c b/emcc.c
index d85a0e8..c1b1f7a 100644
--- a/emcc.c
+++ b/emcc.c
@@ -21,12 +21,6 @@
  *    by using the DOM File API to ask the user to select a file and
  *    permit us to see its contents.
  *
- *  - it ought to be possible to make the puzzle canvases resizable,
- *    by superimposing some kind of draggable resize handle. Also I
- *    quite like the idea of having a few buttons for standard sizes:
- *    reset to default size, maximise to the browser window dimensions
- *    (if we can find those out), and perhaps even go full-screen.
- *
  *  - I should think about whether these webified puzzles can support
  *    touchscreen-based tablet browsers (assuming there are any that
  *    can cope with the reasonably modern JS and run it fast enough to
@@ -53,7 +47,10 @@
  *    that using whatever they normally use to print PDFs!)
  */
 
+#include <assert.h>
+#include <stdio.h>
 #include <string.h>
+#include <stdarg.h>
 
 #include "puzzles.h"
 
@@ -193,10 +190,12 @@ void timer_callback(double tplus)
 }
 
 /* ----------------------------------------------------------------------
- * Helper function to resize the canvas, and variables to remember its
- * size for other functions (e.g. trimming blitter rectangles).
+ * Helper functions to resize the canvas, and variables to remember
+ * its size for other functions (e.g. trimming blitter rectangles).
  */
 static int canvas_w, canvas_h;
+
+/* Called when we resize as a result of changing puzzle settings */
 static void resize(void)
 {
     int w, h;
@@ -207,6 +206,26 @@ static void resize(void)
     canvas_h = h;
 }
 
+/* Called from JS when the user uses the resize handle */
+void resize_puzzle(int w, int h)
+{
+    midend_size(me, &w, &h, TRUE);
+    if (canvas_w != w || canvas_h != h) { 
+        js_canvas_set_size(w, h);
+        canvas_w = w;
+        canvas_h = h;
+        midend_force_redraw(me);
+    }
+}
+
+/* Called from JS when the user uses the restore button */
+void restore_puzzle_size(int w, int h)
+{
+    midend_reset_tilesize(me);
+    resize();
+    midend_force_redraw(me);
+}
+
 /*
  * HTML doesn't give us a default frontend colour of its own, so we
  * just make up a lightish grey ourselves.
@@ -298,6 +317,8 @@ void key(int keycode, int charcode, const char *key, const char *chr,
         keyevent = keycode + (shift ? 0 : 32);
     } else if (keycode >= 48 && keycode <= 57) {
         keyevent = keycode;
+    } else if (keycode == 32) {        /* space / CURSOR_SELECT2 */
+        keyevent = keycode;
     }
 
     if (keyevent >= 0) {
@@ -528,14 +549,14 @@ const struct drawing_api js_drawing = {
  * Presets and game-configuration dialog support.
  */
 static game_params **presets;
-static int custom_preset;
+static int npresets;
 int have_presets_dropdown;
 
 void select_appropriate_preset(void)
 {
     if (have_presets_dropdown) {
         int preset = midend_which_preset(me);
-        js_select_preset(preset < 0 ? custom_preset : preset);
+        js_select_preset(preset < 0 ? -1 : preset);
     }
 }
 
@@ -656,7 +677,7 @@ void command(int n)
       case 2:                          /* game parameter dropdown changed */
         {
             int i = js_get_selected_preset();
-            if (i == custom_preset) {
+            if (i < 0) {
                 /*
                  * The user selected 'Custom', so launch the config
                  * box.
@@ -668,12 +689,14 @@ void command(int n)
                  * The user selected a preset, so just switch straight
                  * to that.
                  */
+                assert(i < npresets);
                 midend_set_params(me, presets[i]);
                 midend_new_game(me);
                 resize();
                 midend_redraw(me);
                 update_undo_redo();
                 js_focus_canvas();
+                select_appropriate_preset(); /* sort out Custom/Customise */
             }
         }
         break;
@@ -762,12 +785,10 @@ int main(int argc, char **argv)
 
     /*
      * Set up the game-type dropdown with presets and/or the Custom
-     * option. We remember the index of the Custom option (as
-     * custom_preset) so that we can easily treat it specially when
-     * it's selected.
+     * option.
      */
-    custom_preset = midend_num_presets(me);
-    if (custom_preset == 0) {
+    npresets = midend_num_presets(me);
+    if (npresets == 0) {
         /*
          * This puzzle doesn't have selectable game types at all.
          * Completely remove the drop-down list from the page.
@@ -775,10 +796,8 @@ int main(int argc, char **argv)
         js_remove_type_dropdown();
         have_presets_dropdown = FALSE;
     } else {
-        int preset;
-
-        presets = snewn(custom_preset, game_params *);
-        for (i = 0; i < custom_preset; i++) {
+        presets = snewn(npresets, game_params *);
+        for (i = 0; i < npresets; i++) {
             char *name;
             midend_fetch_preset(me, i, &name, &presets[i]);
             js_add_preset(name);